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package org.sysmo.server.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import org.sysmo.server.SysmoServer;
import org.sysmo.server.user.User;

/**
 *
 * @author Derek
 */
public class DoDeleteUserAction extends org.apache.struts.action.Action {
    
    /* forward name="success" path="" */
    private final static String SUCCESS = "success";
    private final static String FAIL = "fail";
    
    /**
     * This is the action called from the Struts framework.
     * @param mapping The ActionMapping used to select this instance.
     * @param form The optional ActionForm bean for this request.
     * @param request The HTTP Request we are processing.
     * @param response The HTTP Response we are processing.
     * @throws java.lang.Exception
     * @return
     */
    @Override
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        SysmoServer server = (SysmoServer)getServlet().getServletContext().getAttribute("sysmoServer");
        User currentUser = (User)request.getSession().getAttribute("user");
        int uid = Integer.parseInt(request.getParameter("uid"));
        if (currentUser.getAllUsers().size() == 1) {
            request.setAttribute("error", "至少要有一位用户");
            return mapping.findForward(FAIL);
        }
        User user = server.getUser(uid);
        user.remove();
        return mapping.findForward(SUCCESS);
    }
}
